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Cassidirostrum vexans
Taxonomy
Cassidirostrum vexans was named by Johnson (1971). Its type specimen is USNM 157420 and is a 3D body fossil. Its type locality is USNM 17213. 1900 ft west of VABM 7936. Lone Mountain. Bartine Ranch Quadrangle, which is in an Eifelian marine limestone in the Denay Limestone Formation of Nevada.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1971 | Cassidirostrum vexans Johnson pp. 314 - 315 figs. Pl. 44, figs. 14-38 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Cassidirostrum vexans Johnson 1971
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. G. Johnson 1971 | A multicostate species of Cassidirostrum with a relatively flat pedicle valve. |